As Alf correctly identified, it's a (frosty) fairlead.
Is the point of them to protect the paintwork? They certainly don't seem to protect the ropes.
Abingdon to Oxford - *Tue 12th Sep* Abingdon to Rose Isle After a great weekend in Abingdon, and a wet Monday, we decided to head for Oxford. As we set off upstream, we start...
13 hours ago